Question

find the volume of a cone if the radius of its base is 1.5cm and its perpendicular height is 5cm

Answer 1

Volume=πr²h
            =22/7*1.5*1.5*5
            =35.35cm³

Answer 2

Answer:

Volume of a cone is 11.78 cm³ .

Step-by-step explanation:

Formula

$Volume\ of\ a\ cone = \pi \ r^{2}\frac{h}{3}$

Where r is the radius and h is the height .

As given

The radius of its base is 1.5cm and its perpendicular height is 5cm .

$\pi = 3.14$

Putting values in the formula

$Volume\ of\ a\ cone =3.14\times 1.5\times 1.5\times \frac{5}{3}$

$Volume\ of\ a\ cone =\frac{5\times 3.14\times 1.5\times 1.5}{3}$

$Volume\ of\ a\ cone =\frac{35.325}{3}$

Volume of a cone = 11.78 cm³

Therefore the volume of a cone is 11.78 cm³ .